Yes, it's sad Precise's gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) is still broken.
If you want to (re)build MPFR with that, use (just) '-O2', or '-O3 -fno-tree-vectorize'.
Or (build and) use any of FSF's / vanilla GCC 4.7.{0,1,2,3} or 4.8.0 ... :-)
Yes, it's sad Precise's gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) is still broken.
If you want to (re)build MPFR with that, use (just) '-O2', or '-O3 -fno-tree- vectorize' .
Or (build and) use any of FSF's / vanilla GCC 4.7.{0,1,2,3} or 4.8.0 ... :-)